package com.situ.day17;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

import javax.jws.soap.SOAPBinding.Use;

/*
 * JDBC工具类
 */
public class JDBCUtil {
	private static final String DRIVER = "com.mysql.jdbc.Driver";
	private static final String URL = "jdbc:mysql://localhost:3306/java1807";
	private static final String USER = "root";
	private static final String PASSWORD = "root";
	
	
	static {
		try {
			//1、记载驱动 Class.forName("");
			Class.forName(DRIVER);
		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		}
	}
	
	//2、获得连接对象Connection
	public static Connection getConnection() throws SQLException {
		Connection connection = DriverManager.getConnection(URL, USER, PASSWORD);
		return connection;
	}
	
	//6、关闭连接
	public static void close(Connection connection, Statement statement, ResultSet resultSet) {
		if (resultSet != null) {
			try {
				resultSet.close();
			} catch (SQLException e) {
				e.printStackTrace();
			}
		}
		if (statement != null) {
			try {
				statement.close();
			} catch (SQLException e) {
				e.printStackTrace();
			}
		}
		if (connection != null) {
			try {
				connection.close();
			} catch (SQLException e) {
				e.printStackTrace();
			}
		}
	}
}
